Dating in tamilnadu in salem

The study found a pattern of SNPs that is found in genetics of Dravidian speakers from South India.A Neolithic stone celt (a hand-held axe) with the Indus script on it was discovered at Sembian-Kandiyur near Mayiladuthurai in Tamil Nadu.The date of the celt was estimated at between 1500 BCE and 2000 BCE.The early history of the people and rulers of Tamil Nadu is a topic in Tamil literary sources known as Sangam literature.